Ultimate Ball Tutorial (Icosahedron, Zen Magnets) 

This shape is one that I flagged as super interesting when I first became interested in magnets. And I, like you, wanted to make sure that the total number of magnets I bought exceeded 1860 so I could build this shape. It's such a neat shape!

How Much Was The 1728?

Great! Loved your Flagship video.

I think of it as an icosahedron, because the pentagons go just where the vertices of the icosahedron go. But you can also think of it as a dodecahedron, given that the icosahedron and the dodecahedron are duals of each other.

Boyd Edwards yeah I thought of it that way too but it's easier for me to conceptualize it as the dual because I only have to mentally keep track of 12 units. Thanks! Just made it tonight!

Congratulations! It's a really beautiful shape.

Better hurry. The government is doing its best to shut down magnet sales. A sales ban will be in place beginning on April 1.

Boyd Edwards are you serious? All magnets even from radioshack? If so i better get as much as i can so i can finish all my projects i plan of..

Ali Hegazi I don't know about Radio Shack. But all of the magnet sphere companies have stopped sales in the US except Zen Magnets, and if the judge rules in favor of the CPSC, Zen Magnets will have to stop sales on April 1. You can get them from industrial sources like K & J Magnetics, but they are more expensive there.

Joseph Kim i hear ya buddy

Joseph, great job in breaking the shape down into 12 pentagonal faces, each with 15 sets of double-stacked hexagons (with 12 magnets each) and each with one 5-magnet pentagon, for a total of 2220 magnets. This approach overcounts the number of magnets needed because the 5 corners of these 12 pentagonal faces (each corner being a double-stacked hexagon with 12 magnets) are shared with neighboring faces. To get the correct magnet count, you can start with the 2220 magnet count and subtract 360 magnets (given by 12 faces times 5 corners per face times 12 magnets per corner, all divided by 2 because these corners are double counted in the 2220-magnet total), for a revised total of 1860 magnets. Dozens, perhaps hundreds of people have built this shape with 1860 magnets, as I have. That's all you need to build it! If you need further proof, see my video, in which I build it with 10 stacks of 30 hexagon rings and one stack of 12 pentagon rings (with all of these magnets shown in the video at all times - no hocus pocus!), which also amounts to 1860 magnets. Cheers, Boyd

Wow that was nice I ordered 2sets of neo cube 512 balls

Can It Not Be Built Any Smaller?

+Brigham Brewer Something like that.

You can get them on zenmagnets.com

They were banned in the US for safety concerns for several years but are finally for sale again as of Nov 2016. They're being offered for preorder on the Zen Magnets website.

You can buy them at zenmagnets.com.

No.

@@boydedwards5475 Is there something else like this i can make?

No. You can build other spheres with 216 magnets, though, such as the 60-magnet rhombicosidodecahedron, sometimes mistakenly called the C60 molecule.

I wouldn't say it's "very hard." Just takes a bit of patience.

+onaisa hayat hayat They are no longer available in the United States. You can buy them from K&J Magnetics for an exorbitant price. There are some places overseas like alibaba.com that sell them, I think. Just search on "magnet spheres" and see what you find.

+Boyd Edwards why would you asume he is in the us?

+Shotin FPSuser I made no assumption that he or anyone else is in the US. I simply communicated all that I know about the availability of Zen Magnets. I know only about the availability of Zen Magnets in the US.

maybe at vat 19

maybe im dumb :/

They are 3mm whereas zen magnets are 5mm, they would be $13 not 5

Done. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5xSob4L4GUE.html

Cool name!

+Paul L More like 120$ realistically

+Paul L More like 120$ realistically

Sure, or you can probably get several for free, or thereabouts, from zenmagnets.com

I checked zenmagnets. They don't sell em by themself, cause I bought 216 zen magnets for 10 bucks off a legit site. can i get one ._.

Sure. I'll give you one. Perhaps you could send me your mailing address to my e-mail: boyd.edwards@usu.edu.

DawnOfHackers lol

Same but I have 6 hundo